Infrastructure Startups funded by Y Combinator (YC) in the San Francisco Bay Area that are currently hiring 2026

Oximy helps enterprises understand and manage AI usage across their workforce. Used by security, finance, and transformation teams to track adoption, control spend, and manage governance as AI scales.

We build infrastructure enabling AI agents to reliably perform complex tasks in production

Truth Systems provides a compliance agent to govern the use of generative AI. It translates operational policies into intelligent, real-time guardrails that monitor every AI interaction. This empowers companies to proactively block non-compliant actions and align access to AI tools with user competency. By eliminating the risks and operational blind spots associated with uncontrolled AI adoption, our platform enables enterprises to fully leverage the technology's potential without compromising security. We are establishing the new standard for AI governance, building a future where every professional can innovate safely and confidently.

DeepAware builds an AI-driven automation system for GPU-intensive data centers. Our reinforcement-learning scheduler, real-time market integration, and unified dashboard slice energy waste by up to 30%. Coming soon: autonomous “robot-hand” inspections and maintenance to enable 24/7 operations with minimal staff. More info: https://deepawareai.com/ Jobs/Internship: https://www.deepawareai.com/careers

Pangolin is an open-source, identity-based remote access platform built on WireGuard that enables secure, seamless connectivity to private and public resources.

AgentMail is the email inbox API for AI agents. It gives agents their own email inboxes, like Gmail does for humans.

Aravolta provides a single pane of glass software for data centers to increase uptime, reduce costs, and improve performance. A single utility node onboards every asset within an hour and detects hardware failures, hotspots, and other issues. It also generates reports on important metrics like Power Usage Effectiveness (PUE), energy metering, resource utilization, and much more.

AfterQuery is a research lab (backed by Y Combinator) investigating the boundaries and capabilities of artificial intelligence through novel datasets and experimentation. We believe that pushing the frontiers of AI requires both rigorous scientific inquiry and exceptional human data.

Flowtel is building the next generation operating system for hospitality, powered by modern AI agents that can handle everything from booking to room service.

Revyl is a AI-native mobile testing platform that automatically catches and triages bugs before they reach production.

Archil transforms S3 buckets into a 30x faster, unlimited, local disk. Archil enables AI, analytics, and serverless applications to instantly access massive data sets without waiting for data transfer. Researchers use Archil for shareable, local storage of data set and model versions that never runs out of capacity.

One-click GPU instances with persistent storage, snapshots, and hot-swappable hardware, with the lowest prices anywhere.

Oway is an AI-driven freight platform that turns America’s empty truck space into a new category of freight shipping. Every year 50% of U.S. truck space goes unused, a $100B+ inefficiency. Oway uses AI to automatically price, match, and sell that space in real time, giving businesses freight shipping that is dramatically faster and cheaper than traditional options. We're building the largest decentralized network of America’s empty truck space - a transparent infrastructure layer any shipper, broker, or carrier can plug into. For shippers, this means freight costs that are up to 50% lower than traditional LTL (shipments from 1 to 12 pallets), along with faster delivery windows because freight moves directly from dock to dock without the slow handoffs, warehouses, or cross-docking infrastructure that LTL depends on. For carriers, Oway’s integration can increase annual revenues by up to 30% with minimal impact on existing schedules. They simply earn more by monetizing space that would have gone unused. Our mission is to transform empty truck space into an asset that strengthens U.S. competitiveness. By lowering the cost of goods sold, we help businesses grow. By improving carrier margins, we make trucking more sustainable. And by digitizing and decentralizing freight, we are laying the foundation for a resilient, transparent logistics layer that can support America’s reindustrialization in the decades ahead. Oway makes freight shipping as simple as ridesharing - click a button, book a truck, and move goods at the true cost of available capacity.

Mem0 provides a memory layer for LLM applications, enabling them to remember and learn from user interactions over time.

AI Agents have arrived. They are powerful enough to read, plan, and act across your everyday life and work. The question is no longer whether they can run canned demos to check the weather, it’s whether real teams can rely on them for critical work. We optimize for adoption over spectacle: useful, accountable systems that help top professional complete real tasks. Wordware is backed by Spark Capital, Felicis, and Y Combinator, with a $30M seed round. Our beautiful, historic San Francisco office sits in the shadow of the Golden Gate Bridge, it’s full of plants and radiates innovation and calm. We genuinely love working together. At lunch we talk about alignment and AI consciousness, we have surfboards in the office ready to use, we take walking meetings on the beach and hang out after work at the bar or climbing wall. We work really hard because we care deeply about what we do. Sauna is Wordware’s AI workspace for professionals. Think ‘Cursor for Knowledge Work’ and you’re halfway there. With explicit permission, it connects to tools like Gmail, Calendar, Slack, and thousands more, to gather the right context to move your work forward. It learns who you are, drafts and refines your documents, presentations, and datasets, researches across the web and your org’s internal knowledge, summarizes long threads to cut through the noise, proposes next steps, even acts on your behalf when enabled. You can work with Sauna live, side-by-side, or schedule jobs to run automatically in the background, with clear permissions and easy off-switches. Sauna brings the power of AI Agents to all professionals.

ROE AI solve risks and compliance problems for financial industry.

14.ai is a Zendesk + offshore alternative built from the ground up for AI agents.

What if you could build web apps as easily as you make a Figma design or edit a Google Doc? Enter Mocha. We've reimagined app development with a state-of-the-art coding agent that builds for our users. Want to launch that app idea? Need to build something for your community? Looking to prototype faster? Start here. We've removed the barriers between idea and execution. Our mission is to empower everyone to build for the web, our vision is personal software.

Fast Apply - Edit Files Faster - 10,500 tok/sec WarpGrep - Fast Context - 5x faster agentic code search subagent. eliminates context rot Glance- Videos of AI testing your PR, embedded in GitHub

Artie is software that streams data from databases to data warehouses in real-time. Today, most companies run their ETL process every few hours or overnight, so their data warehouse is always out of date; with Artie, the warehouse always has live production data.

Middleware is a full-stack cloud observability platform. We allow the dev and ops teams to debug the issue faster by bringing all the metrics, logs, traces, and events to a single unified timeline and train data to AI so it can give better insight into infrastructure and application. - Single command installation to collect all the metrics, logs, traces, and events. - AI-based anomaly and error detection - GPT 4-based error resolution - Support Infrastructure monitoring, Logs, APM, Kubernetes Monitoring, Synthetic Monitoring, RUM, Custom dashboard, and Alerts. - Full-stack observability, observe any stack at any scale. We are at Middleware and wanted to make cloud observability faster, cheaper, and better.

Reflex is the operating system for building mission-critical enterprise applications. Today’s enterprise stack is fragmented. Shipping an app requires stitching together multiple tools and coordinating across multiple roles. Reflex replaces that complexity with a single, unified platform to build, deploy, and manage production applications end-to-end. We empower teams to own the entire lifecycle of their apps — from idea to production — without needing specialized infrastructure, DevOps, or platform teams. We do this by providing solid, reusable abstractions at both the framework and infrastructure layers. Because we own the underlying open-source framework and the platform it runs on, we can manage the full lifecycle of the application seamlessly. With Reflex, teams securely connect to company data, use AI to build standardized applications on top of our open-source framework, and deploy with a single click to share across their organization. We’re replacing the fragmented enterprise stack — and the organizational bottlenecks that come with it. Founded by Alek Petuskey and Nikhil Rao, Reflex has powered over 1 million applications, earned 28,000+ GitHub stars, and is used by 30% of Fortune 500 companies for internal tools and data-driven applications.

Every breakthrough AI application, from foundation models to autonomous vehicles, relies on processing massive volumes of images, video, and complex data. But today’s data platforms (like Databricks and Snowflake) are built on top of tools made for spreadsheet-like analytics, not the petabytes of multimodal data that power AI. As a result, teams waste months on brittle infrastructure instead of conducting research and building their core product. Eventual was founded in 2022 to solve this. Our mission is to make querying any kind of data, images, video, audio, text, as intuitive as working with tables, and powerful enough to scale to production workloads. Our open-source engine, Daft, is purpose-built for real-world AI systems: coordinating with external APIs, managing GPU clusters, and handling failures that traditional engines can’t. Daft already powers critical workloads at companies like Amazon, Mobileye, Together AI, and CloudKitchens. We’ve assembled a world-class team from Databricks, AWS, Nvidia, Pinecone, GitHub Copilot, Tesla, and more, quadrupling our size within a year. With backing from Y Combinator, Caffeinated Capital, Array.vc, and top angels from the co-founders of Databricks and Perplexity, we’re looking to double the team now. Join us—Eventual is just getting started. Please note we are looking for someone who is willing and able to come into our San Francisco office in the Mission district 4 days / week.

Sieve is the only AI research lab exclusively focused on video data. Video already makes up 80% of internet traffic and has become the dominant medium driving creativity, communication, gaming, AR/VR, and robotics. Unlocking the ability to truly model video is the key to breakthroughs across all of these domains but progress has been bottlenecked by one thing: high-quality training data. That’s where Sieve comes in. We bring together exabyte-scale video infrastructure, novel video understanding techniques, and dozens of diverse data sources to create datasets that push the frontier of video modeling. This unique combination allows us to deliver data with unmatched precision, quality, and speed which has earned the trust of frontier AI labs, Fortune 100 companies, and fast-growing generative AI startups.

Svix is the enterprise ready and open source webhooks service. Webhooks are a pain. Developers need to worry about deliverability, retries, monitoring and security. All of which are different for webhooks compared to the rest of the stack. We turn all of that into a simple API call. Svix is sending billions of webhooks for customers both large (Fortune 500) and small (startups), and is backed by Y Combinator, Andreessen Horowitz (a16z), Aleph, and founders and CTOs of companies such as Github, PagerDuty, Segment and Lookout.

Signadot is a K8s-native platform for agentic validation. As AI accelerates code generation, verification is the new bottleneck. We provide ephemeral environments and a validation framework for microservices, ensuring high-velocity generation results in safely merged production code.

SigNoz is an open-source observability platform native to OpenTelemetry with logs, traces and metrics in a single application. An open-source alternative to DataDog, NewRelic, etc. Open source Application Performance Monitoring (APM) & Observability too

https://github.com/adenhq/hive

Our customers use Freshpaint to make their websites and entire marketing stack HIPAA compliant. It's impossible to use modern analytics and marketing tools without sharing sensitive HIPAA-regulated data. Our platform does the hard thing of moving data from A to B. And then we do the really hard thing of controlling the flow of sensitive HIPAA-regulated data to various 3rd-party marketing tools. We're building the data infrastructure that safeguards patient privacy while also enabling marketing teams promote access to healthcare.

We are working on the software that will power the next generation of Cloud Computing (Edge Computing) platforms using WebAssembly. You can see us as a mix between Docker (but 100x more performant in startup time, and with 100x more lightweight containers), npm (we released the first WebAssembly package manager: wapm.io) and the JVM (but more universal).

We provide a simple API for creating, storing, versioning, and collaborating on multi-modal AI datasets of any size. With Activeloop's open-core stack, you can rapidly transform and stream data while training models at scale. Deep Lake powers foundational model training by acting as a vector database with significant benefits, such as (1) the ability to use multi-modal datasets to fine-tune your own LLM models, (2) storing both the embeddings and the original data with automatic version control, so no embedding re-computation is needed (3) truly serverless service with no vendor lock-in. How cool is that? GitHub loves us - we're one of the fastest-growing libraries there, and we're used by little-known companies like Google, Waymo, and Intel. No big deal. Our founding team hails from places like Princeton, Stanford, Google, and Tesla, and we're backed by Y Combinator & other Silicon Valley heavyweights. Activeloop is hiring, and we want you! Check out our open roles on our YC page and join the fun. 10-min demo: https://activeloop.wistia.com/medias/aibvo0dst2 Whitepaper: https://www.deeplake.ai/whitepaper

Today’s top Voice AI companies rely on AssemblyAI’s speech-to-text and speech understanding models to launch groundbreaking products fast and to scale with ease.

Mux is an API-first video platform designed by experts to make world-class video streaming and analytics possible for every development team. Self-optimizing videos take the guesswork out of encodings, delivery, and renditions. Mux makes your video look beautiful on every device, every time. We offer two products, Mux Video and Mux Data. Mux Video is a simple API to advanced video streaming. Powered by data and designed by video experts, Mux Video makes beautiful video possible for every development team. Post a video or live stream with a single API call, and watch it within seconds. Mux Video handles the encoding, storage, and delivery. QoE and performance analytics provided by Mux Data is included by default for every Mux video stream.This real-time data is used to create the right renditions for every device and title, resulting in greater reliability and better viewer experiences. Mux Data is a Quality of Experience analytics platform that measures the performance metrics that actually matter to viewers: rebuffering, startup time, video quality, and errors. Our intuitive dashboard quickly gives users the insight to find issues and make improvements through features like A/B testing, industry-wide scores, alerts, and detailed information about every single video view. The product works out of the box on HTML5, iOS, Android, and major OTT platforms. All data is available via exports and APIs, making it easy to integrate Mux Data into other systems.

Bitmovin has been a first mover in almost every significant development in online video, from building and deploying the world’s first (and fastest) commercial adaptive streaming (MPEG-DASH/HLS) HTML5 Player, to being the first to achieve 100x realtime encoding speeds in the cloud. Bitmovin provides HEVC as well as VP9 live streaming with 60FPS and 4K resolution, and built the first containerized video encoding solution with Docker and Kubernetes. Bitmovin products are completely in-house developed, easy and fast to integrate and highly customizable. In combination with our great support, documentation and SLAs, this is a true enterprise offering. To find out more about Bitmovin’s video infrastructure solutions, or about any individual products, contact sales@bitmovin.com, or visit our website: bitmovin.com

Etleap is an ETL solution for creating perfect data pipelines from day one. Unlike other enterprise solutions, Etleap doesn’t require extensive engineering work to set up, maintain, and scale. It automates most ETL setup and maintenance work, and simplifies the rest into 10-minute tasks that analysts can own.

Apollo GraphQL is the leader in open source and commercial GraphQL technologies. Apollo’s open-source GraphQL client, server, and gateway are downloaded more than 17M times per month and used in production by over 30% of the Fortune 500. Customers like Walmart, Expedia, Glassdoor, Audi, and PayPal, use the Apollo Graph Platform to unify their GraphQL efforts, collaborate on graph development, and safely iterate on their graphs. Based in San Francisco, Apollo is backed by Insight Partners, Andreessen Horowitz, Matrix Partners, Trinity Ventures, Y Combinator and individual investors.

Satsuma is a developer tool for building applications on top of real-time blockchain data. Our product lets developers take decoded data from multiple chains, customize it for their use cases, and access it through API endpoints. Blockchains serve as distributed databases for these products, holding their most important data. However, it’s difficult to access and query that data. We believe this friction is an enormous blocker for web3 developers and that better tooling will enable mass adoption for web3. We’re a founding team of engineers, having built data infrastructure and product as early employees at Airtable, Heap, and Y Combinator.

Peer5's P2P CDN improves content delivery for live and on demand video streams. As video streaming continues to become more mainstream and the streams themselves become HD and 4K, traditional CDNs struggle to deliver high quality viewing experiences. Many publishers try to keep up with peak demand by paying for more servers, many of which are almost never used and struggle with video playback. Not only is this expensive, but it's also inefficient, which is why at Peer5, we've created a P2P CDN to boost your video streaming capabilities. Our CDN works with your servers to ensure that as your viewership increases, your network gets stronger by offloading bandwidth to our peer network. On average, this has been shown to increase server capacity by 20x, offload 70% of bandwidth, increase viewing time by 30% and decrease instances of rebuffering by 40%. Our video streaming CDN uses emerging technologies, including HTML5 and WebRTC. They require no installation by end users and offer easy integration for content providers. We support many different streaming protocols, players and media servers.

Your software is your competitive advantage, and your customer experience is everything. Armory Continuous Deployment solutions empower you and your teams to confidently deploy every application, every time; safely and securely, so you can accelerate your time-to-market, increase stability, and decrease customer-impacting issues.

Packaged Applications for Any Platform. Bitnami has automated the ability to package, deploy and maintain applications, lowering the barrier to adoption for anyone to deploy and maintain a full spectrum of server applications, development stacks and infrastructure applications in virtually any format. Simply click to deploy any one of 120+ ready-to-run applications from the Bitnami Application Catalog or use Bitnami Stacksmith to package and migrate your custom in-house applications to the cloud. For more information, visit www.Bitnami.com, or follow us on Twitter (@Bitnami) and Facebook.

MemSQL is The No-Limits DatabaseTM, powering modern applications and analytical systems with a cloud-native, massively scalable architecture for maximum ingest and query performance at the highest concurrency. MemSQL envisions a world where every business can make decisions in real-time and every experience is optimized through data. Global enterprises use the MemSQL distributed database to easily ingest, process, analyze, and act on data in order to thrive in today’s insight-driven economy. MemSQL is optimized to run on any public cloud or on-premises with commodity hardware. Visit www.memsql.com or follow us @memsql. Headquartered in San Francisco, CA with offices in Seattle, WA and Portland OR, MemSQL has raised over $100M from top investors including GV, Accel Partners, and Khosla Ventures, among others. MemSQL is trusted by customers including Uber, Akamai, Dell EMC, Samsung, Comcast, Kellogg, and more. If you want to work at a company that celebrates diversity, innovation, leadership, and creativity every day, check out our openings at https://www.memsql.com/careers/.